Adding-machine attachment.



G. L. DOWN ER.

ADDING MACHINE ATTACHMENT.

APPLICATION FILED APR.19, 1910.

Patented Jan. 3, 1911.

2 SHEETS-SHEET 1.

Mun...-

HI I I [IVE/W01? CVarewm/T [Illa 77,81

A TTORNEVS WITNESSES: 61R 1' MPMM ww e/ O. L. DOW-NEE.

ADDING MAGHINE ATTACHMENT.

APPLICATION FILED APRJQ, 1910.

Patented Jan. 3, 1911.

2 SHEETS-SHEET 2.

HTIII 1 INVENTUH Yam/MAL 1 0/1720 ATTORNEYS min/5885s.-

6;. MM f ri K To whom 'it'may concern; at

UNITED STATES PATENTQFEIGE.

' cn'aanncn LEONARD nownnn', or IDAHO ranns mano.

ADDING-MACHINE ATTACHMENT;

Be it known that I, CLARENCE L. DOWNER, a citizen of the United States, and a resident of Idaho Falls, in the county of Bingham and State of Idaho, have invented anew and Improved Adding-Machine Attachment, of which the following is a full, clear, and exact description.

This invention relates to attachments for addingmachines, and like devices, and has reference more particularly to an attach ment of this class,]compr1s1ng means for.

operating by fQOtrPOWGI', the hand-crank or other likemanipulating member of the addingmachine.

The object of the invention is to provide a simple, strong and efiicient attachment for add ng machines, other calculating machines,

and like devices, which can bej'applied to the machine without altering; the construction thereof or affecting the o which facilitates and acceleratesthef-operation of the machine,- a'nd which "permits foot-powe to be usedfonperforming operations or inarily effected with the hands,

thereby-leaving the latter free to be used for other purposes;

The invention consists in theconstruction and combination of parts to be more fully described hereinafter and particularly "set forth in the claims. 1 Reference is' to be had tothe. accompanying drawings formin a part of this s'peci ence indicate corresponding parts in all the v1ews," and in Wine =2 Figure 1- is a side elevation of an addingmachinehavin an attachment of my invention applie thereto; Fig. 2 is a front elevation ofthe machine with the attachment; Fig, 3 is a vertical section of the lower part of the machine supporting frame, showing details of the attachment, and.illustratin also, the hand-operable member con necte thereby; Fig. 4 is a transverse section showing the pedal mechanism of the attachment;- Fig. 5 is a side elevation of a detachable seg- 'ment, for-use in connection with an adding machine having an operating handle to which thesegment can be secured, a part of the segment being broken'away; Fig. 6 is a plan yiew of the segment shown in- Fig. 5; and

Fig. 7 is a side elevation'of a pitman, hav- 'ration of the. same, which can be used w1 machi nes of: different types, s zes, and constructions,.

with the attachment and operated- I Specification of Letters Patent. application filed 4 m 1 1910. Serial No. 556,295.

Patented Jan. 3, i911.

ing,.par'ts broken away, and constituting a modlfieddetail of construction of the device.

Before proceeding to a more detailed-explanation of .my invention, it should be" clearly understood that while I have illustrated the attachment employed, for example, with an adding machine known as the Burroughs adding machine it can also be advantageously used with other forms of adding machines, other calculating machines and like devices, in which certain operations are erformed by rocking or otherwise actuatm a hand-crank or like element. I provi e means for applying foot-power to this element, to cause it to effect its. function, thereby leaving 'both hands ofthe operator free at all times to be used for other purposes. operation of the a ding or other machine vcan be materially facilitated. Oertain of the details form no part of this invention,

and can be varied in accordance with individual preference andspecial conditions, without departing from the underlying spirit of the invention.

In this way the Referring more particularly to-thedrawings, I have shown an adding machine A, having a hand-crank A, provided with a gri A by means of which it can be manipulate the crank being ivotally mounted at the side of'the machine, fly means of a shaft or sp'ifli dle at A. It has associated therewith a segment A, which has a grooved edge A. A

stand B, comprises s milar members B, provided with feet 13. The members B, at the upper ends, have laterally disposed, recessed extensions B formed to receive the feet A of the adding machine. In this way, the

latter can be conveniently mounted uponthe stand.

'If the adding machine has a hand-crankonly, and is not provided with a segment ermanently associated with the hand-cran r, I. employ a detachable. segment D, provided with a grooved, peripheraledge D and a ra dial opening D provided at its inner end with an enlargement D. The 0 ening -D is formed to receive the handle 0 the adding machine, the hub of which is located in .the opening-D The segment has cross-pieces D, extending over the opening, and held in place by set-screws D. They-serve to secure the segment to the handle. I

Rods or shafts 10 extend across the stand, from one of the'members B to-the other, be-

ing located in suitable openings of the r nem-..

' cure the shafts in place. They are located set-screws. The member is substantiallytr i angular, and has arts 14 cut away for the At the lower end, the flexible member '22 has i an eye 24 secured upon a lug 25 of theoperata so desired, to replacethe flexible member 22.

' serves to oldltheoperating mcmber'in :1 nortends to prevent the footsli 'iping from the I -hubs'13 by means of which it is mounted to upon the-spindle. The latter has a retaining collar 20, and atthe end a head 21, to prevent the movement ofthe pedal longitudinally of .to the lu 25, the pitman having at the ends,

which it is mounted to rock-upon the rear pivot rod or shaft 10. The hub 30, is held in' c place by collars similar to the collars 13. i

The foot lever is preferably slightly curved, .and has a. strengthening rib orflange 31. At the forward end it pro ects beyond the stand,

crating member. At the other end, the-link bers' B, and have threaded ends, on which suitable retaining nuts ll are screwed to sea respectively, at the front and the back of the stand. An operating member. 12 has ofl'set rock upon'thefront shaft or pi'vot rod 10. The hubs, have the ends inwardly beveled, and areheld in placeby correspondin 1y bev eled collars 13?,secured upon the r 10 by the spindle; A flexible connecting member 22, consisting for example, of a leather strap of round cross-section, has one end arranged in the grooved edgeA or D, of a segment, and has the extremity secured adjacent to' the hand-crank, by means of ascrew 23 or 23*.

ing member, and held in place by retaining nuts 26. The segments have lugs A andD, provided with screws by means of which a i pitman 39,- provided with a take-upnipple canbe secured to one of the segments or eyes 41, for the purpose. It may be used, it

One of the stand members B has an inward projection 26, to which is fastened one end of a helical or other spring 27. The other end of the spring 27 is fastened to an eye 28 of the o)erating member 12. The spring mal, elevated position, as is shown for 'example',-in Figs. 1 and 3.

A foot lever 29 has a hub 30, by means of and has a rubber or other surface'32, which end of the lever. 'A link 33 has its upper 5 end pivoted by means of a suitable pm or screw-34, in a slot or opening 35 of the op- 33 has, a plurality ofopenings 36, and is adustabl v received in a suitable slot or openmg 37 of thefoot lever. By means of a pivot pin or'screw 38 which passesthrough anyfone of the openin s 36," the lower end of thelatter can be suitably connected with the foot lever. By depressing the foot lever by j means of the foot,'the operating'member is rocked downward against the tension of the Me member 22, rotates the spindle A without necessitating the use of the hand. "The same action can be effected by 'pressing down- 'ward with the .foot, upon the pedal" 16. x In spring 27, and through the connecting flexithis way, either foot, or bothfeet, can be 4 used to operate the hand-crank device of the adding machine. As soon as the foot press'ureis released, the spring returns theparts- -to their normal positions, .and the handscrank is free to return to its normal position.

Having thus described my invention, I claim as new, and desire tosecure by Letters Patent adding machine mounted thereon and havsaid stand, and 'a connecfion between said members and said hand crank, each of said members being operable by foot power.

ing a hand crank, of members carried by.

2. The combination, with an adding m a-- I chine having a hand operable member,' of o'peratively connected devices, each adapted to be actuated by foot power inde'pendentlyozt.v

the other, one of said devices having an op- 'era'tive connection with said member. 3. The combination, w1th a stand, and an adding machine mounted thereon'and having a hand-crank, of an operating member pivot-ally carried by'said stand, a spring tending to maintain said'operatingmember in a normal position," an o erat-ive connection between said member am said hand-crank,

a pedal carried by said member and serving to permititsoperation by foot-power, and'a foot lever pivotally carried by said stand, and operativcly connected with said operating member. j

r. Thecombi'nation, with a stand, and-an adding machine mounted thereon and haviug a hand crank; of an operating member pivotally carried by said stand and havin a pedal, a spring tending to maintain sai operating member 1n a normal positlon, a connection between said member and said hand-crank, a lever pivotally carried by said i stand and operable by foot-pressure, and an adjustable link connecting said member and said foot lever.

The coml'nnatiom-with an adding machine having a hand lever, of a'segment provided with a peripheral groove, and a radial enlargement, said opening being formed to receive said hand leverof-the adding machine, said enlargement serving to receive the hub of said hand lever, a cross piece mounted upon said segment and extending over said opening, a f o0t;operable member,

opening provided at itsinner end with an a l. The combination, with a stand and an and a flexible member secured to said foot operable member and extending longitudinally of said groove, said flexible member being secured in said groove.

6. The combination with a stand, and a member and said foot lever. I machine mounted thereon and having a I In testimony whereof I have signed my hand-crank id ta d h i at, th from; I name to th ss-pecification in the presence of and at the back thereof pivotrods, of an op? "two subscribing Witnesses. crating member pivotally mounted upon CLARENCE LEONARD DOWNER.

an operative coImect-ion between said lnem- 'ber and'said handcrank, a foot lever pivoted at said back rod and operable by foot pressure, and. a link adjustabiy connecting said said front rod and having a pedal, a spring I Witnesses? secured to said member and said stand, and i u A. C. JENSEN, holding said member 1n a normal position, i A. S. SIMS. 

